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Finding the Fourth Proportional to 659,700.83, 910,388.90 and 357,894.83

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Solution

The fourth proportional to 659,700.83, 910,388.90 and 357,894.83 is: 493,895.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,700.83 : 910,388.90 = 357,894.83 : x
  2. Step 2: Convert to fraction form
    659,700.83/910,388.90 = 357,894.83/x
  3. Step 3: Cross multiply
    659,700.83x = 910,388.90 × 357,894.83
  4. Step 4: Simplify right side
    659,700.83x = 325,823,478,809.91
  5. Step 5: Solve for x
    x = 325,823,478,809.91/659,700.83
  6. Step 6: Final answer
    x = 493,895.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.